Airometer



Nov. 15, 1927.

B. BUSCH AIHOMETER Filed Sept. 16. 1925 Patented Nov. 15, 1927.

UNITED STATES.

BEN BUSCH, on DETROIT, MioriiGAn, Assisnon, sY Mnsnn ASSIGNMENTS n. CLARK, on Mon-snot, MICHIGAN.

ninoivinrnn.

Application filed. September eration and shall embody features rendering its operation entirely sai'e both with regard to the device itself and with regard to those about it. y l

With the above and other objects in view, my invention consists in the arrangement, combination and construction of the various parts of my improved device as described in thespecification, claimed in my claims and shown in the accompanying drawing, in which:

The single figure is an elevation of my improved device, certain portions thereof being cut away to better illustratethe' inven tion.

5, mounted upon legs 6 and having a tank or container 7 positioned thereon. Positioned on the top of the tank 7 is a supporting frame of U shaped formation, indicat-cd generally as 8. The frame extends above the tank 7 and has a rod 9 depended from the horizontalportion thereof into the tank 7.

The top of the tank '7 is open, and a tank 10, having an open bottom and a closed top 11, is inserted therein. Depended from the top ill of the tank 10, is a pipe 12,wliich extends to the bottom of the tank 10, where it is provided with a collar 13, from which extend struts 14; tor reinforcing the bottom of the tank 10. The rod 9 extends through the top 11 of the tank 10 and downwardly through the pipe 12 to the bottom of the tank 7. Any suitable fluid 15, such as water, is placed in the tank 7 to a level above the bottom of the tank 10, as at 16.

Mounted upon a suitable support 17 at one side of the tank 7, and its support 5, is a conventional electric motor and blower unit, indicated generally as 18, and connected with the interior of the tanks through a conduit 19 extending under the tank 7, and

I have shown a foundation, or support.

16, 1925. Serial No. 56,777.

a conduit 20, extending upwardly therein, which latter conduit extends above the liquid level 16 in the tank 7. v A second conduit 21 is PIOVlt'lGCilIltlle tank 7, extending to substantially the samelevel ,as'the c0nduit2O To EDWARD and is connected with a conduit 22 leading from the bottom of thetank 7 and thence through a conduit 23 and a conduit 24 to a desired point, which in a domestic gas makingplantmay be to the carburetor thereof.

For the operation of the electric motor and blower unit, an electrical conductor 25 extending from a conventional switch 26 of an electrical system is provided, which con ductor leads through a conventional knockout box 2? and conductor 28 to a conventional circuit. breaker box. 29,. and thence through the conductor 30 to a switch 31 and thence through the conductor 82 to the electric motor." i

Thus, when theelectrical circuit is completed through the switch 26, the motor blower unit- 18 will be operated to force. air through the conduits l9 and 20 into theupper portions of the tanks 7 and 10.

The circuit breaker box 29 will serve its usual function of breaking the connection to the motor blower unit in the eventlof an accident occurring in the electrical system.

The switch 31 is operated by a handle 33 extending therefrom and a rod 34 is provided extending verticallythrough the handle 33 and having Ont-he bottom thereof a coiled spring 35 held in placeby a washer 36 and a nut37. A washer 88 is also provided onthe top of the spring 35. For the support of the rod 3d, a rod 39 is mounted on the top of the tank 10 and is horizontal ly bent to form'the portion 40 which is bolted, as at 41, to the top of the rod 34. A nut, or other suitable projection .42, is provided on the rod- 3% vadjacent the. top thereo'li it will be seen, therefore, that as air is forced into the tanks 7 and 10 through the motor blower unit from theelectrical system. The air thus compressed in the tanks 7 andlO may escape through the conduits 21, 22 and 23 tothe point where it is desired to use the same, as through the conduit 24. As the air is used up, the tank lO will of course fall with the result that the rod 34 will correspondingly fail until the nut or other projection 42 thereon strikes the topuoii the handle 33,-at which time the handle 33 will be: pushed downwardly to agaiinnialte the electrical connection to the motor ubiowerunit torepeat the charging of the tanks with air i i i 111 this connection, itwill be noted that a plurality-of weights as maybe provided on the top of the tank 10' to prevent too quick raising thereof and also to cause the 1owering of the tank 10 as the pressure therein decreases. It will be readily appreciated that the total oithese Weights may be proportioned according tothe size of the system used; i p

i In aidditionuto the conduit 24: connected to the conduit23, aconduitis: is provided above the connection between the conduits 23 and TEZtan-d entends into the small conta-inerdh', which container is provided with a suitable fluid 46, such as oil, and has a conduit l? GXt11dl11g fl"U1ll the top thereof and leading to the atmosphere. It will be appreciated that the oil a6 normally forms a sez'rl to prevent the escape of air through the chamber d5,but in the event'oit the accumulation of excess pressure in the system, ashy the failure off the switch 3]. to shut oh "the motor blower unit, air, when it reaches such excess pressure, may bubble through the 'oil 46 and escape to the atmosphere. Y I i Asa in*therchech ior the safety of the device, a nventional safety check valve 4-.8 may be provided in the conduit 19 leading from the motor blower unit, which will be operated by excess pressure" to permit air furnished by the blower to pass directly to theatmosphereinstead of into the tanks 7 andIO.

Itwillbe obvious that many of the :devices utilized in my improvedconstruction are of conventional type and I have not, therei.ore, illustnted them in detail, inasmuch asthose skilled in the artare familiar with their construction and to illustrate them in detail would add unnecessary matter to this specification. p p

It will be obvious that vitriol-is changes maybe made in the arrangement, combination and construction of the various parts otni'y improved device without departing from thcspirit oi' ny invention, and it is my intention to cover by my claims such changes as may be reasonably incluilcd with in the: scope thereof. 1

What I claim is: i

,1. In combination, a base member, a tank mounted thereon having a closed bottom and an open top, support members extended upnrdly from said tank, a cross piece securing the ends of said members together, a rod depended from saidcross piece into said tank, a second tank hai 'ingan open end extended into said first tank and closed end extended above the same, a tidiular uieuihcr withinsaidsecond tank, depended from the top thereof, said rod being fitted into said tubular member so as to guide said second tank for vertical reciprocation, liquid in saidtanksabovc the mectingiinca oi. their adjacent .ends so as to seal them, a conduit in said iilrit tank and having an open end extending above said liquid le\ 'el, 1neans for forcing air through said conduitand a sec and conduit leading from a point in said tanks above said liquid level to a disposed point, an. oil chamber, a third conduit lead ing from said second conduit into the oil in saidchainher, anda rentin said chamber, whereby air in said conduit may be normally held from escape throiilgli said cllau'iber hut may bepermitted to pass through it when (JOIHIDIBSfI-EOtiiO a predetermined point.

2. In combination, a tank, means for forcing air therein, means to" automatically discontinuing the forcing oi. air therein when the pressure has reached a predetermined point, means for autonmtically continuing the forcing oi air therein when the pressure has dropped to a prcdeterinined point, and means for automatically permit ting the escape of air ,ironi said tank in event of pressure therein raising to a predeterinined point above saidiirst predctcr mined point.

enu Boson. 

